Door.



0. W. MEISSNER.

Doon. APPLICATION FILED HAY 15, 1911.

1,014,768. Patented .an.16,1912.

l| l 'l l 7 nowoz www l OTTO WILLIAM MEISSNER', 0F MONTREAL' QUEBEC, CANADA.

' noon.l

Specification of Letters Patent:

Patented Jan.`16,191a

Application led May 15, 1911. Serial No. 627,300.

To all whom t may concern.'

Be itknown that I, O'r'ro WILLIAM MEIss- NER, a citizen of the United States, residing in Montreal, Province of Quebec, Canada, have invented certain new and useful Improvements in Doors; and I do hereby declare that the' following is a full, clear, and

exact description of the same. j

This .invention relates more particularly l0 to doors for closing gravity discharge openings, such as t e discharge openings of hopper or other receptacles orl the like being especially adapted for application to cars -used for transporting grain or other com- '15 minuted material. The invention has for its object the provision of 'an improved andsirnpliied means for rendering the door proof against leakage.` For fullcomprehension, however, of the invention and of the object and advantages thereof, reference will be had to v the following description and appended claims, and to. the annexed drawings fern,

ing .a part ofv this specification in which c similar reference characters indicate .the

, same parts and wherein: i vFigure 1 is a vertical sectional view of the door showing .it-in connection with a portion of the vunderstructure of a car; Fig. 2

g is a horizontal section taken on line 2--2 Fig. 1 looking down. Fig. 3 is a perspec- -tive view of the resilient sealing strip, and, Figs. 4 and 5 are detail sectional views illus'- trating mod ied forms of the resilient sealv ing devices. l

In the drawlng the door is shown as closing a discharge opening lin thenbottomof a car, a small portion of the understructure ,consistingof a side sill 2 and center sill 3 10' and connecting cross bearer 4 being shown,

the particularconstruction of such under- ,structure however having no reference to this invention.

The frame proper of the door which may j be suitably supportedlAby the understructure of the ear, is shown at and is formed preferably. on all vfour sides with downwardly projecting flanges 6. Y j

The door is shown at 7 and may be hinged as 'at 8 to any suitable part as' t-l11e1ce`nter sill and may be operated to close it by shaft 10 suitably supported as indicated by therail 11 inthe cross bearer 4, and operatedby any well known or suitable means,

the operation of lthe laterally pmovable shaft the art as to require no further illustration or description;

to close a dump door being so well known to f The door is preferably formed on the ,i

hinged side and the two adjacent sides with upwardly extending flanges 16y extending continuously laround such sides, the remainin side of the door being unobstructed. The door thus constitutes a trough with one yend topen particularly adapted forf rapid unloading.

The anges 16, inclosing the flanges 6 on the adjacent sides ofthe door frame, act to prevent leakage of material along these sides.

In order t properly seal the joint between the fourth side of the door (constituting the open end of the trough) and the adjacent- `portion of the door frame, I have provided a resilient device adapted to contact with the said open end and be Vkept by its resili-` ency in close contact with 'the door and so effectu'ally seal. the joint at the side, thisdevice being so arranged that the saidopen end of the trough will belleft unobstructed when thedooris open. In t-he modification shown in Figs. 1 and 2 this device acts as a flange -for the nonlanged side of the door when closed, and forms the fourth flange inclosing the fourth side of the ianged door frame. As shown in these figures thisy de# vice comprises an angular strip of resilient lmetal having a horizontal fiange- 2O (by which it is attached as by the bolts 21 to the side sill 2) and a Vertical flange 22 projecting downwardly-within the extended open end of the trough in close relation with the flange of the door frame and bearing yieldingly against the` bottom of the .said end, the strip `extending completely-'across the space between the side flanges 16. This strip is constructed to normally-project below the level of the door frame as shown 1n dotted lines in Fig. 1, but upon the door being closed in the end of the latter engages the bottom of the' `strip and springs it upwardly to the position shown in full lines.

In Fig. 4 I have shown a modification in which the resilient strip (shown at 25) is attached to the outer face of the door framev liange 6 and is curved 'downwardly and outlwardly to bear yieldingly against the free end of the door; while -in Fig. 5I have shown a still further modification inwhich the resilient strip (shown at 26) is securedf 11?` 'miA to the side sill in the mannershown in Fig. 1 but' is provided on its under face with a rubber strip or gasket 27 which bears against the end of the door.

As indicated by the dotted lines in Figs. 2 and 3 the free edge of the strip may be formed with slots' or cuts extending transversely thereto for the purpose of lallowing the strip to accommodate itself to va hinged door havlngxxed upwardly projecting flanges on the two sldes adjacent the hinged side of the door, and a resilient Astrip adapted'to extend across one side of the ,door between the ends of the flanges and seal the joint between the said side of theV door and the door frame.

l2. The combination .with aA door 'frame inclosing a gravity discharge opening, of a door upwardly flanged' on three sides to form a trough with `one end open, andv resilient means for sealing the 'oint between the said open end andthe adjacent portion ofv the door frame. f

3. The combination with a door frame inclosing a gravity discharge opening, of a door upwardly flanged on three 'sidesv to form a trough having one end open, a member adapted to act as a iangefor the fourth side of the door when in closed position,

and means for causing such member to be pressed into yielding cont-act with the door. 4. The combination with a door frame inclosing a gravity discharge opening, of a hinged door'upwardl and two adjacent si es, the free side of the j door-being without an upwardly projecting flange, and resilient means for sealing the flanged on the hinged i joint between the said free side and the adjacent side of the door frame.

5. The combination with a door frame inclosing a gravity discharge opening, ofla door upwardly flanged on three sides to form a trough with one end open, and an angular strip of resilient metal and ,having` one flange adapted to close the said open end.

6. The combination with a downwardly flangd door frame inclosing a gravity disprojectingy flanges on three sides inclosing the corresponding flanges of the door frame, a metallic member for sealing the joint between the remaining side of the door frame,

.charge opening, of a door having upwardly v and means for causing such member to be pressed into yielding contact with the door.

7. The combination with a door frame inclosing a gravity discharge opening and having downwardly-projecting flanges, of

a door upwardlyflanged on 'three sides only 70 to forma trough with one 'end open, the said unflanged side of the door extending beyond the corresponding side of the door frame, and a resilient sealing strip adapted to bear against the said unflanged side of the door` and seal the joint therebetween andI the adjacent portion of the door frame.

8. The combination with a door frame inclosin a gravity vdischarge o ening and .having do door upwardly flanged on three sides only to form a trough with one 'end' open, the said unflanged side of the door extending beyond the corresponding side of the door frame, and a resilient metallic strip adapted 85 to bear against the said unflanged side of the door, and seal the joint therebetween and the adjacent portion of the door frame.l In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

OTTO WILLIAMvMEISSNER.

Witnesses:

ALEX CURRIE, GEORGE L, RooKwELL.

wnwardly projecting anges, 'of a 80' 

